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| Mirrors > Home > MPE Home > Th. List > Mathboxes > opf2 | Structured version Visualization version GIF version | ||
| Description: The morphism part of the op functor on functor categories. Lemma for fucoppc 49992. (Contributed by Zhi Wang, 18-Nov-2025.) |
| Ref | Expression |
|---|---|
| opf2fval.f | ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑦𝑁𝑥)))) |
| opf2fval.x | ⊢ (𝜑 → 𝑋 ∈ 𝐴) |
| opf2fval.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| opf2.c | ⊢ (𝜑 → 𝐶 = 𝐷) |
| opf2.d | ⊢ (𝜑 → 𝐷 ∈ (𝑌𝑁𝑋)) |
| Ref | Expression |
|---|---|
| opf2 | ⊢ (𝜑 → ((𝑋𝐹𝑌)‘𝐶) = 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opf2fval.f | . . . 4 ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ ( I ↾ (𝑦𝑁𝑥)))) | |
| 2 | opf2fval.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐴) | |
| 3 | opf2fval.y | . . . 4 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 4 | 1, 2, 3 | opf2fval 49987 | . . 3 ⊢ (𝜑 → (𝑋𝐹𝑌) = ( I ↾ (𝑌𝑁𝑋))) |
| 5 | opf2.c | . . 3 ⊢ (𝜑 → 𝐶 = 𝐷) | |
| 6 | 4, 5 | fveq12d 6869 | . 2 ⊢ (𝜑 → ((𝑋𝐹𝑌)‘𝐶) = (( I ↾ (𝑌𝑁𝑋))‘𝐷)) |
| 7 | opf2.d | . . 3 ⊢ (𝜑 → 𝐷 ∈ (𝑌𝑁𝑋)) | |
| 8 | fvresi 7152 | . . 3 ⊢ (𝐷 ∈ (𝑌𝑁𝑋) → (( I ↾ (𝑌𝑁𝑋))‘𝐷) = 𝐷) | |
| 9 | 7, 8 | syl 17 | . 2 ⊢ (𝜑 → (( I ↾ (𝑌𝑁𝑋))‘𝐷) = 𝐷) |
| 10 | 6, 9 | eqtrd 2796 | 1 ⊢ (𝜑 → ((𝑋𝐹𝑌)‘𝐶) = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1559 ∈ wcel 2141 I cid 5537 ↾ cres 5645 ‘cfv 6516 (class class class)co 7391 ∈ cmpo 7393 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7713 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-sbc 3743 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-opab 5160 df-id 5538 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-res 5655 df-iota 6472 df-fun 6518 df-fv 6524 df-ov 7394 df-oprab 7395 df-mpo 7396 |
| This theorem is referenced by: fucoppcid 49990 fucoppcco 49991 oppfdiag 49998 lmddu 50249 |
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